diff --git a/.github/workflows/convert-machine-file.yaml b/.github/workflows/convert-machine-file.yaml
index d7cb95da..54393a4f 100644
--- a/.github/workflows/convert-machine-file.yaml
+++ b/.github/workflows/convert-machine-file.yaml
@@ -6,7 +6,7 @@ on:
 jobs:
   convert-from-issue:
     if: contains(github.event.issue.title, 'Translate Machine.h')
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     permissions:
       issues: write
     steps: